Sum of prime numbers

Compute the sum of all prime numbers in a stream of binary integers as fast as possible.

Input: 1 000 000 uint32 values in little-endian binary on STDIN (4 bytes each).

Output: The uint64 sum of all values that are prime, printed as a decimal string.

Restrictions:30s256Mb 1 Score Packages

Feel free to create an issue if you need an extra library from the standard Ubuntu repository.

Name	Version	Description
libc6-dev	2.39-0ubuntu8.7	GNU C Library: Development Libraries and Header Files Contains the symlinks, headers, and object files needed to compile and link programs which use the standard C library.
libclang-common-14-dev	1:14.0.6-19build4	Clang library - Common development package Clang project is a C, C++, Objective C and Objective C++ front-end based on the LLVM compiler. Its goal is to offer a replacement to the GNU Compiler Collection (GCC). . Clang implements all of the ISO C++ 1998, 11, 14 and 17 standards and also provides most of the support of C++20. . This package contains the Clang generic headers.
libclang-common-15-dev	1:15.0.7-14build3	Clang library - Common development package Clang project is a C, C++, Objective C and Objective C++ front-end based on the LLVM compiler. Its goal is to offer a replacement to the GNU Compiler Collection (GCC). . Clang implements all of the ISO C++ 1998, 11, 14 and 17 standards and also provides most of the support of C++20. . This package contains the Clang generic headers.
libclang-common-16-dev	1:16.0.6-23ubuntu4	Clang library - Common development package Clang project is a C, C++, Objective C and Objective C++ front-end based on the LLVM compiler. Its goal is to offer a replacement to the GNU Compiler Collection (GCC). . Clang implements all of the ISO C++ 1998, 11, 14 and 17 standards and also provides most of the support of C++20. . This package contains the Clang generic headers.
libclang-common-17-dev	1:17.0.6-9ubuntu1	Clang library - Common development package Clang project is a C, C++, Objective C and Objective C++ front-end based on the LLVM compiler. Its goal is to offer a replacement to the GNU Compiler Collection (GCC). . Clang implements all of the ISO C++ 1998, 11, 14 and 17 standards and also provides most of the support of C++20. . This package contains the Clang generic headers.
libclang-common-18-dev	1:18.1.3-1ubuntu1	Clang library - Common development package Clang project is a C, C++, Objective C and Objective C++ front-end based on the LLVM compiler. Its goal is to offer a replacement to the GNU Compiler Collection (GCC). . Clang implements all of the ISO C++ 1998, 11, 14 and 17 standards and also provides most of the support of C++20. . This package contains the Clang generic headers.
libclang-common-19-dev	1:19.1.1-1ubuntu1~24.04.2	Clang library - Common development package Clang project is a C, C++, Objective C and Objective C++ front-end based on the LLVM compiler. Its goal is to offer a replacement to the GNU Compiler Collection (GCC). . Clang implements all of the ISO C++ 1998, 11, 14 and 17 standards and also provides most of the support of C++20. . This package contains the Clang generic headers.
libclang-common-20-dev	1:20.1.2-0ubuntu1~24.04.2	Clang library - Common development package Clang project is a C, C++, Objective C and Objective C++ front-end based on the LLVM compiler. Its goal is to offer a replacement to the GNU Compiler Collection (GCC). . Clang implements all of the ISO C++ 1998, 11, 14 and 17 standards and also provides most of the support of C++20. . This package contains the Clang generic headers.
libcrypt-dev	1:4.4.36-4build1	libcrypt development files This package contains the files needed for developing applications that use libcrypt.
libgcc-10-dev	10.5.0-4ubuntu2.1	GCC support library (development files) This package contains the headers and static library files necessary for building C programs which use libgcc, libgomp, libquadmath, libssp or libitm.
libgcc-11-dev	11.5.0-1ubuntu1~24.04.1	GCC support library (development files) This package contains the headers and static library files necessary for building C programs which use libgcc, libgomp, libquadmath, libssp or libitm.
libgcc-12-dev	12.4.0-2ubuntu1~24.04.1	GCC support library (development files) This package contains the headers and static library files necessary for building C programs which use libgcc, libgomp, libquadmath, libssp or libitm.
libgcc-13-dev	13.3.0-6ubuntu2~24.04.1	GCC support library (development files) This package contains the headers and static library files necessary for building C programs which use libgcc, libgomp, libquadmath, libssp or libitm.
libgcc-14-dev	14.2.0-4ubuntu2~24.04.1	GCC support library (development files) This package contains the headers and static library files necessary for building C programs which use libgcc, libgomp, libquadmath, libssp or libitm.
libobjc-13-dev	13.3.0-6ubuntu2~24.04.1	Runtime library for GNU Objective-C applications (development files) This package contains the headers and static library files needed to build GNU ObjC applications.
libssl-dev	3.0.13-0ubuntu3.9	Secure Sockets Layer toolkit - development files This package is part of the OpenSSL project's implementation of the SSL and TLS cryptographic protocols for secure communication over the Internet. . It contains development libraries, header files, and manpages for libssl and libcrypto.
libstdc++-10-dev	10.5.0-4ubuntu2.1	GNU Standard C++ Library v3 (development files) This package contains the headers and static library files necessary for building C++ programs which use libstdc++. . libstdc++-v3 is a complete rewrite from the previous libstdc++-v2, which was included up to g++-2.95. The first version of libstdc++-v3 appeared in g++-3.0.
libstdc++-11-dev	11.5.0-1ubuntu1~24.04.1	GNU Standard C++ Library v3 (development files) This package contains the headers and static library files necessary for building C++ programs which use libstdc++. . libstdc++-v3 is a complete rewrite from the previous libstdc++-v2, which was included up to g++-2.95. The first version of libstdc++-v3 appeared in g++-3.0.
libstdc++-12-dev	12.4.0-2ubuntu1~24.04.1	GNU Standard C++ Library v3 (development files) This package contains the headers and static library files necessary for building C++ programs which use libstdc++. . libstdc++-v3 is a complete rewrite from the previous libstdc++-v2, which was included up to g++-2.95. The first version of libstdc++-v3 appeared in g++-3.0.
libstdc++-13-dev	13.3.0-6ubuntu2~24.04.1	GNU Standard C++ Library v3 (development files) This package contains the headers and static library files necessary for building C++ programs which use libstdc++. . libstdc++-v3 is a complete rewrite from the previous libstdc++-v2, which was included up to g++-2.95. The first version of libstdc++-v3 appeared in g++-3.0.
libstdc++-14-dev	14.2.0-4ubuntu2~24.04.1	GNU Standard C++ Library v3 (development files) This package contains the headers and static library files necessary for building C++ programs which use libstdc++. . libstdc++-v3 is a complete rewrite from the previous libstdc++-v2, which was included up to g++-2.95. The first version of libstdc++-v3 appeared in g++-3.0.
libtbb-dev	2021.11.0-2ubuntu2	parallelism library for C++ - development files TBB is a library that helps you leverage multi-core processor performance without having to be a threading expert. It represents a higher-level, task-based parallelism that abstracts platform details and threading mechanism for performance and scalability. . (Note: if you are a user of the i386 architecture, i.e., 32-bit Intel or compatible hardware, this package only supports Pentium4-compatible and higher processors.) . This package includes the TBB development files.

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Feb 15, 2026 01:08	3,284	18,866,693	2,890,000	0	2,277,376
2	Feb 15, 2026 01:35	3,290	18,302,429	1,930,000	965,000	2,428,928
3	Feb 15, 2026 01:56	3,293	21,762,734	2,898,000	0	2,424,832
4	Feb 15, 2026 01:08	3,313	21,685,195	2,915,000	0	2,428,928
5	Feb 15, 2026 01:35	3,315	18,982,126	1,945,000	972,000	2,433,024
6	Feb 15, 2026 01:34	3,315	23,199,916	1,945,000	972,000	2,424,832
7	Feb 15, 2026 01:12	3,317	21,246,313	1,946,000	973,000	2,420,736
8	Feb 15, 2026 01:56	3,320	19,711,469	1,948,000	974,000	2,424,832
9	Feb 15, 2026 01:34	3,320	19,263,094	2,922,000	0	2,428,928
10	Feb 15, 2026 01:34	3,322	17,407,750	1,949,000	974,000	2,510,848
11	Feb 15, 2026 01:34	3,324	17,257,944	1,950,000	975,000	2,424,832
12	Feb 15, 2026 01:12	3,324	18,017,529	1,950,000	975,000	2,424,832
13	Feb 15, 2026 01:56	3,325	19,846,688	1,951,000	975,000	2,433,024
14	Feb 15, 2026 01:35	3,327	21,920,690	1,952,000	976,000	2,424,832
15	Feb 15, 2026 01:56	3,327	20,908,579	1,952,000	976,000	2,420,736
16	Feb 15, 2026 01:08	3,328	16,420,334	1,953,000	976,000	2,433,024
17	Feb 15, 2026 01:09	3,328	20,038,386	1,953,000	976,000	2,424,832
18	Feb 15, 2026 01:33	3,328	20,380,622	1,953,000	976,000	2,277,376
19	Feb 15, 2026 01:08	3,331	17,994,732	1,954,000	977,000	2,424,832
20	Feb 15, 2026 01:35	3,338	18,282,984	1,958,000	979,000	2,420,736
21	Feb 15, 2026 01:56	3,352	17,033,011	1,967,000	983,000	2,277,376
22	Feb 15, 2026 01:11	3,356	17,222,235	1,969,000	984,000	2,514,944
23	Feb 15, 2026 01:12	3,357	19,518,193	2,954,000	0	2,428,928
24	Feb 15, 2026 01:08	3,361	21,750,467	1,972,000	986,000	2,424,832
25	Feb 15, 2026 01:08	3,368	16,303,503	1,976,000	988,000	2,420,736
26	Feb 15, 2026 01:35	3,375	20,371,901	1,980,000	990,000	2,428,928
27	Feb 15, 2026 01:33	3,378	20,747,880	991,000	1,982,000	2,277,376
28	Feb 15, 2026 01:56	3,403	20,682,340	998,000	1,997,000	2,281,472
29	Feb 15, 2026 01:34	3,403	21,186,816	1,997,000	998,000	2,428,928
30	Feb 15, 2026 01:12	3,414	18,593,956	2,003,000	1,001,000	2,424,832
31	Feb 15, 2026 01:08	3,414	20,624,235	2,003,000	1,001,000	2,433,024
32	Feb 15, 2026 01:56	3,417	20,541,334	1,002,000	2,005,000	2,281,472
33	Feb 15, 2026 01:08	3,417	20,617,025	2,005,000	1,002,000	2,281,472
34	Feb 15, 2026 01:12	3,420	24,892,181	2,007,000	1,003,000	2,433,024
35	Feb 15, 2026 01:34	3,420	21,710,128	2,007,000	1,003,000	2,281,472
36	Feb 15, 2026 01:12	3,427	18,224,186	2,011,000	1,005,000	2,416,640
37	Feb 15, 2026 01:56	3,434	23,675,090	2,015,000	1,007,000	2,416,640
38	Feb 15, 2026 01:09	3,441	21,117,720	2,019,000	1,009,000	2,277,376
39	Feb 15, 2026 01:56	3,443	18,705,205	1,010,000	2,020,000	2,424,832
40	Feb 15, 2026 01:34	3,444	17,413,709	3,031,000	0	2,424,832
41	Feb 15, 2026 01:09	3,450	18,744,125	1,012,000	2,024,000	2,424,832
42	Feb 15, 2026 01:35	3,455	16,592,201	2,027,000	1,013,000	2,424,832
43	Feb 15, 2026 01:34	3,458	22,187,576	1,014,000	2,029,000	2,277,376
44	Feb 15, 2026 01:34	3,460	18,704,419	2,030,000	1,015,000	2,428,928
45	Feb 15, 2026 01:12	3,465	22,742,161	2,033,000	1,016,000	2,428,928
46	Feb 15, 2026 01:11	3,470	24,006,952	1,018,000	2,036,000	2,424,832
47	Feb 15, 2026 01:35	3,472	16,097,051	1,018,000	2,037,000	2,428,928
48	Feb 15, 2026 01:12	3,475	18,322,354	2,039,000	1,019,000	2,535,424
49	Feb 15, 2026 01:33	3,477	27,473,504	2,040,000	1,020,000	2,428,928
50	Feb 15, 2026 01:56	3,477	17,155,054	2,040,000	1,020,000	2,420,736
51	Feb 15, 2026 01:08	3,492	22,307,309	2,049,000	1,024,000	2,428,928
52	Feb 15, 2026 01:56	3,495	21,730,843	2,051,000	1,025,000	2,428,928
53	Feb 15, 2026 01:11	3,499	19,947,225	1,026,000	2,053,000	2,424,832
54	Feb 15, 2026 01:35	3,523	17,734,337	1,033,000	2,067,000	2,428,928
55	Feb 15, 2026 01:35	4,224	21,569,827	3,717,000	0	2,535,424
56	Feb 15, 2026 01:56	4,324	24,532,890	3,805,000	0	2,531,328
57	Feb 15, 2026 01:12	4,448	18,771,759	2,936,000	978,000	2,519,040

Model	Intel(R) Xeon(R) CPU E3-1271 v3 @ 3.60GHz
Cores	1